Ormia
Ormia
Classification
- Phylum: Arthropoda
- Subphylum: Hexapoda
- Class: Insecta
- Order: Diptera
- Superfamily: Oestroidea
- Family: Tachinidae
- Subfamily: Tachininae
- Tribe: Ormiini
- Genus: Ormia
Pronunciation
How to pronounce Ormia: /ˈɔr.mi.a/
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Images
Summary
Ormia is a genus of small nocturnal flies that are parasitoids of crickets and katydids, recognized for their complex ear structures and significance in sound localization studies.
Physical Characteristics
Small nocturnal flies with complex ear structures in their prothorax near the bases of the front legs.
Identification Tips
Look for the unique ear structures and nocturnal activity; the most common species, Ormia ochracea, is a key identification point.
Habitat
Primarily found in southern regions of the New World, with some species widely distributed in the eastern areas.
Distribution
New World, primarily southern regions; some species have a wide distribution in the eastern parts.
Diet
Parasitoids of pyralid moths (Pyralidae) and various orthopterans such as katydids and crickets.
Life Cycle
Life cycle involves parasitoid larvae entering hosts (typically katydids and crickets), which are infected when the female lays eggs near or directly on the male host.
Reproduction
Females lay eggs near singing male hosts, allowing planidia-like larvae to enter both male and female hosts after hatching.
Ecosystem Role
Act as natural population control for katydids and other orthopterans by parasitizing them.
Collecting Methods
- Net capture
- Trapping with bait
Preservation Methods
- Ethanol preservation
- Pinned specimens
Similar Taxa
Misconceptions
Some may confuse them with other flies due to their appearance, but their unique ear structures differentiate them from similar families.
Tags
- Entomology
- Parasitoids
- Diptera
- Tachinidae
- Ecology
- Nocturnal
- Ormia